DLTooley said:There are a number of different models, on mine the humidifier is removable. I never bring it on the road, as water leakage would also be an issue in transit. If yours is not removable, there should be a setting of zero. My auto flex settings are higher. The 12v cable was $30ish.
Normally I use it without the humidifier, if my battery is fully charged and I am not using much in electricity at night I might bump on the humidifier to 1 or 2. Sounds like you have the same model as me.